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The objectives of this study were to collect and characterise Malawian cassava germplasm using ethnobotany, morphological and Amplified Fragment Length Polymorphism (AFLP) markers. Exploration of accessions with the help of indigenous knowledge was done. Ninety three accessions collected from f...


Benesi, I.R.M.Labuschagne, M.T.Herselman, L.Mahungu, N.M.[Ethnobotany, morphology and genotyping of cassava germplasm from Malawi]Ethnobotany, morphology and genotyping of cassava germplasm from Malawi

When cassava is harvested too early, it often leads to reduction in yield, while delayed harvest leads to development of woody and fibrous tuberous roots, and reduction in starch content. The optimum harvest time is not known. The objectives of this study were to determine the effect of genotype,...


Benesi, I.R.Labuschagne, M.T.Herselman, L.Mahungu, N.M.Saka, J.K.[The effect of genotype, location and season on cassava starch extraction]The effect of genotype, location and season on cassava starch extraction

An improved understanding of phenotypic variation within cassava germplasm in southern, eastern and central Africa will help to formulate knowledge-based breeding strategies. Thus, the overall objective of this study was to examine the phenotypic variation in cassava germplasm available within si...


Kawuki, Robert S.Ferguson, M.Labuschagne, M.T.Herselman, L.Orone, J.Ralimanana, I.Bidiaka, M.Lukombo, S.Kanyange, M.C.Gashaka, G.Mkamilo, G.S.Gethi, J.Mkamilo, G.S.[Variation in qualitative and quantitative traits of cassava germplasm from selected national breeding programmes in subSaharan Africa]Variation in qualitative and quantitative traits of cassava germplasm from selected national breeding programmes in subSaharan Africa

Cassava is a major staple and food security crop in Africa which can produce a crop under uncertain rainfall and low fertility conditions. How- ever, it suffers from several pests and diseases, with Cassava Mosaic Disease (CMD) being the main biotic constraint in production in s...


Parkes, E.Fregene, Martin A.Dixon, A.Okogbenin, EmmanuelBoakye-Peprah, B.Labuschagne, M.T.[Developing Cassava Mosaic Disease resistant cassava varieties in Ghana using a marker assisted selection approach]Developing Cassava Mosaic Disease resistant cassava varieties in Ghana using a marker assisted selection approach

Breeding for resistant genotypes is the best strategy to offset the destructive effects of cassava mosaic disease (CMD) and cassava bacterial blight (CBB). Two sets of diallel parents were selected for the forest and the savannah ecological zones in Ghana based on good levels of resistance to CMD...


Parkes, E.Fregene, Martin A.Dixon, A.Boakye-Peprah, B.Labuschagne, M.T.[Combining ability of cassava genotypes for cassava mosaic disease and cassava bacterial blight, yield and its related components in two ecological zones in Ghana]Combining ability of cassava genotypes for cassava mosaic disease and cassava bacterial blight, yield and its related components in two ecological zones in Ghana

Inbreeding of predominantly cross-pollinating crops is expected to result in the generation of progeny with reduced fitness and/or progeny with improved phenotypes. However, this effect is not well documented in cassava (Manihot esculenta Crantz). In this study, S1 progeny from six cassava genoty...


Kawuki, Robert S.Nuwamanya, E.Labuschagne, M.T.Herselman, L.Ferguson, Morag E.[Segregation of selected agronomic traits in six S1 cassava families]Segregation of selected agronomic traits in six S1 cassava families

Genetic enhancement of cassava aimed at increasing productivity through the provision of broad-based which improved germplasm and is also a major goal for cassava breeders. 10 genotypes (4 landraces and 6 developed lines) were evaluated at Fumesua, Ejura and Pokuase in 2 growing seasons in a rand...


Peprah, B.B.Agyeman, A.Parkes, E.Kwadwo, O.Isaac, A.K.Okogbenin, E.Labuschagne, M.T.[Stability, agronomic performance and genetic variability of 10 cassava genotypes in Ghana]Stability, agronomic performance and genetic variability of 10 cassava genotypes in Ghana

Cassava brown streak disease (CBSD) is an economically important virus disease causing significant losses to cassava root yield and quality in east, central and southern Africa. Breeding for resistance in cassava requires an understanding of the underlying genetic control of CBSD resistance. Sour...


Kulembeka, H.P.Ferguson, M.Herselman, L.Kanju, E.Mkamilo, G.S.Masumba, E.Fregene, Martin A.Labuschagne, M.T.[Diallel analysis of field resistance to brown streak disease in cassava (Manihot esculenta Crantz) landraces from Tanzania]Diallel analysis of field resistance to brown streak disease in cassava (Manihot esculenta Crantz) landraces from Tanzania

Cassava is an important food and cash crop in Malawi. It is also becoming increasingly important for industrial use. The aim of this study was to investigate the native starch quality of different Malawi cassava genotypes. Trials were conducted at Chitedze and Makoka in Malawi in the 2000/01 seas...


Benesi, I.R.Labuschagne, M.T.Dixon, Alfred G.O.Mahungu, N.M.[Stability of native starch quality parameters, starch extraction, and root dry matter of cassava genotypes in different environments]Stability of native starch quality parameters, starch extraction, and root dry matter of cassava genotypes in different environments

Studies to quantify genetic variation in cassava germplasm, available within the national breeding programmes in Africa, have been limited. Here, we report on the nature and extent of genetic variation that exists within 1401 cassava varieties from seven countries: Tanzania (270 genotypes); Ugand...


Kawuki, Robert S.Herselman, L.Labuschagne, M.T.Nzuki, I.Ralimanana, I.Bidiaka, M.Kanyange, M.C.Gashaka, G.Masumba, E.Mkamilo, G.S.Gethi, J.Wanjala, B.W.Zacarias, A.Madabula, F.Ferguson, M.[Genetic diversity of cassava (Manihot esculenta Crantz) landraces and cultivars from southern, eastern and central Africa]Genetic diversity of cassava (Manihot esculenta Crantz) landraces and cultivars from southern, eastern and central Africa

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